[Paraview] display thrid dimension of nc file

[Utkarsh Ayachit]

> Would anyone agree to a feature request of having the option of
> changing the window type, exactly so you can open this type of file
> and then just click "3d" without having to open a new window and close
> the old one?

You can right click on the top title bar of a view to get a "Convert
To" menu which allows you to change the view type in place.

Utkarsh